Grid in right side of viewport missing

The grid in the right side/view of the viewport is missing.

Hi!

Check Grid visibility in viewport.

Is checked and the problem is in the same viewport at change between views, but today looks like its fixed no idea why.

This is not resolved as setting the grid option is not the issue, the grid in the right side disappears randomly and for no reason, and now it just won’t show at all.

Also encountered an unexpected problem…
UE v4.21.2

UPD: It’s a bug or some kind of limit…

Same problem here in version 4.22.2. My orthographic front and left views have no grid even with “show grid” selected. All others views are fine. Restarting the editor didn’t help either.